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the_systech bc5c16ae82 added auto_prune
git-svn-id: file:///svn/phpbb/trunk@516 89ea8834-ac86-4346-8a33-228a782c2dd0
2001-06-19 17:38:00 +00:00

112 lines
4.6 KiB
PHP

<?php
/***************************************************************************
* prune.php
* -------------------
* begin : Thursday, June 14, 2001
* copyright : (C) 2001 The phpBB Group
* email : support@phpbb.com
*
* $Id$
*
*
***************************************************************************/
/**************************************************************************\
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
\**************************************************************************/
// I am currently seperating the prune functions from functions.php due to the
// fact that they are only really needed in one or two places so I don't see
// the need to include them everywhere. If someone else thinks this is a bad
// idea I am not opposed to moving them elsewhere ;) Jonathan "The_Systech"
/***************************************************************************\
*
* function prune. This function takes as it's arguments the forum id to
* perform the prune on, and the date before which topics should be pruned.
*
* This function returns the number of topics pruned upon success.
*
\***************************************************************************/
function prune($forum_id, $prune_date)
{
global $db, $lang;
$sql = 'SELECT t.topic_id
FROM ' . TOPICS_TABLE . ' t, ' . POSTS_TABLE . " p
WHERE t.forum_id = $forum_id
AND p.post_id = t.topic_last_post_id
AND t.topic_type != " . POST_ANNOUNCE . "
AND p.post_time < $prune_date";
if(!$result = $db->sql_query($sql))
{
error_die(SQL_QUERY, "Couldn't obtain list of topics to prune.", __LINE__, __FILE__);
} // End if(!$result...
$pruned_topics = $db->sql_numrows($result);
if($pruned_topics > 0)
{
$prune_posts_sql = 'DELETE FROM ' . POSTS_TABLE . "
WHERE forum_id = $forum_id AND (";
$prune_topic_sql = 'DELETE FROM ' . TOPICS_TABLE . "
WHERE forum_id = $forum_id AND (";
// ADD a list ORing all Topic ID's to prune....
while($row = $db->sql_fetchrow($result))
{
$prune_posts_sql .= 'topic_id = ' . $row['topic_id'] . ' OR ';
$prune_topic_sql .= 'topic_id = ' . $row['topic_id'] . ' OR ';
} // End while loop
// Remove the final OR...
$prune_posts_sql = substr($prune_posts_sql, 0, (strlen($prune_posts_sql) - 4));
$prune_topic_sql = substr($prune_topic_sql, 0, strlen($prune_topic_sql) - 4);
$prune_posts_sql .= ')';
$prune_topic_sql .= ')';
if(!$result = $db->sql_query($prune_posts_sql))
{
error_die(SQL_QUERY, "While Pruning: Couldn't remove affected posts.<br>$prune_posts_sql", __LINE__, __FILE__);
} // end if(!$result...
if(!$result = $db->sql_query($prune_topic_sql))
{
error_die(SQL_QUERY, "While Pruning: Couldn't remove affected topics.", __LINE__, __FILE__);
} // end if(!$result...
} // End if $prune_topics
return $pruned_topics;
} // End function prune.
/***************************************************************************\
*
* Function auto_prune(), this function will read the configuration data from
* the auto_prune table and call the prune function with the necessary info.
*
****************************************************************************/
function auto_prune($forum_id = 0)
{
global $db, $lang;
$one_day = 60 * 60 * 24;
$sql = 'SELECT *
FROM ' . PRUNE_TABLE . "
WHERE forum_id = '$forum_id'";
if(!$result = $db->sql_query($sql))
{
error_die(SQL_QUERY, "Auto-Prune: Couldn't read auto_prune table.", __LINE__, __FILE__);
} // End if(!$result...
while($row = $db->sql_fetchrow($result))
{
$forum_id = $row['forum_id'];
$prune_date = time() - ($row['prune_days'] * $one_day);
$pruned = prune($forum_id, $prune_date);
$next_prune = time() + ($row['prune_freq'] * $one_day);
$sql = 'UPDATE ' . FORUMS_TABLE . "
SET prune_next = '$next_prune'
WHERE forum_id = '$forum_id'";
if(!$db->sql_query($sql))
{
error_die(SQL_QUERY, "Auto-Prune: Couldn't update forum table.", __LINE__, __FILE__);
} // End if(!$db->sql..
} // End While Loop.
} // End auto_prune function.